History of Hollywood
The history of Hollywood is comprised of the remnants of multiple timelines, rearranged and collapsed together in the wake of the Big One. The inherently contradictory and anachronistic nature of such a combined history makes it hard to document accurately. For instance: certain historical figures tragically died young after living for over a century, new discoveries were invalidated by ones made decades before, and .
Hollywood uses its own calendar out of necessity, due to temporal irregularities such as 1954 occurring nine separate times across a thirty year span. Everything prior to the Big One is BBO (Before Big One), and everything after is AH (Anno Hollywood, or more informally, Age of Hollywood). Chronological aftershocks will shift events and rewrite minor aspects of the timeline, requiring the official realignment of the calendar to ensure that the Big One is always situated at 0 AH.